Fitbit Ionic vs. Garmin Forerunner 935 vs. Asus VivoWatch vs. Fitbit Flex vs. Garmin Vivofit 4

 
Ionic
Forerunner 935
VivoWatch
Flex
Vivofit 4
 FitbitIonicRemove Buy NowGarminForerunner 935Remove Buy NowAsusVivoWatchRemove Buy NowFitbitFlexRemove Buy NowGarminVivofit 4Remove Buy Now

Basic Info

Suggested Price$299$500$160$100$79.95
Release20172017201820132018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration4+ daysUp to 2 weeks24 hours to 10 days5 days1 year
Rechargeable

Compatibility

Android
iOS
Windows PhoneNANA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution348x250240 x 240128 x 128NA88 x 88
Size1.421.2 inchesNANANA
TouchNA
TypeOLEDLCDNALEDNA

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or AltimeterNA
Ultraviolet Sensor
Water Resistance50m5 ATMIP671 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemFitbit OSKoodOSNA
Apps
Music

All Wearables